@font-face {
  font-family: "Tektur";
  src: url("assets/fonts/Tektur-Regular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Tektur";
  src: url("assets/fonts/Tektur-Medium.ttf") format("truetype");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Instrument Sans";
  src: url("assets/fonts/InstrumentSans-Regular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  --bg: #060b16;
  --bg-elevated: rgba(10, 19, 39, 0.92);
  --panel: rgba(11, 23, 48, 0.88);
  --panel-strong: rgba(15, 29, 59, 0.95);
  --line: rgba(117, 182, 255, 0.22);
  --line-strong: rgba(117, 182, 255, 0.4);
  --text: #eff6ff;
  --muted: #a9b6cb;
  --accent: #8de8ff;
  --accent-strong: #44b9ff;
  --amber: #ffb65a;
  --danger: #ff6d75;
  --ok: #7ef2b5;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --container: min(1160px, calc(100vw - 32px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  font-family: "Instrument Sans", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(48, 98, 176, 0.28), transparent 34%),
    radial-gradient(circle at 85% 10%, rgba(141, 232, 255, 0.18), transparent 24%),
    linear-gradient(180deg, #03060d 0%, #071120 42%, #050b15 100%);
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: radial-gradient(circle at center, black 48%, transparent 100%);
  opacity: 0.55;
}

a {
  color: inherit;
}

img {
  display: block;
  max-width: 100%;
}

.skip-link {
  position: absolute;
  left: 14px;
  top: -44px;
  background: #fff;
  color: #000;
  padding: 10px 14px;
  border-radius: 10px;
  z-index: 10;
}

.skip-link:focus {
  top: 12px;
}

.page-shell {
  position: relative;
  width: var(--container);
  margin: 0 auto;
  padding: 20px 0 64px;
}

.site-header,
.section,
.site-footer {
  position: relative;
  z-index: 1;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(5, 12, 24, 0.8);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow);
}

.brand-lockup {
  width: min(420px, 54vw);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}

.site-nav a,
.button {
  text-decoration: none;
  border-radius: 999px;
}

.site-nav a {
  padding: 11px 16px;
  color: var(--muted);
  border: 1px solid transparent;
  transition: border-color 180ms ease, color 180ms ease, background 180ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--text);
  background: rgba(141, 232, 255, 0.08);
  border-color: var(--line);
}

.section {
  margin-top: 28px;
  padding: 30px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(11, 18, 36, 0.92), rgba(7, 13, 25, 0.94));
  box-shadow: var(--shadow);
  overflow: clip;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 34px;
  align-items: center;
  min-height: 600px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-family: "Tektur", sans-serif;
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1,
h2,
h3,
.quick-card strong,
.route-status,
.route-score,
.matrix-card h3 {
  font-family: "Tektur", sans-serif;
  letter-spacing: 0.02em;
}

h1 {
  margin: 0;
  font-size: clamp(3rem, 8vw, 5.8rem);
  line-height: 0.96;
  max-width: 11ch;
}

.hero-dek,
.section-heading p,
.route-summary,
.route-points,
.matrix-card p,
.note-card p,
.faq-answer p,
.site-footer p,
.reality-note {
  color: var(--muted);
  line-height: 1.7;
}

.hero-dek {
  max-width: 64ch;
  margin: 22px 0 0;
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 26px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  font-family: "Tektur", sans-serif;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button-primary {
  color: #03111f;
  background: linear-gradient(135deg, var(--accent) 0%, #d7fbff 100%);
  box-shadow: 0 14px 30px rgba(68, 185, 255, 0.28);
}

.button-secondary {
  color: var(--text);
  border: 1px solid var(--line-strong);
  background: rgba(141, 232, 255, 0.06);
}

.reality-note {
  margin: 18px 0 0;
  max-width: 60ch;
}

.hero-visual {
  min-width: 0;
}

.signal-stage {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 500px;
}

.signal-panel {
  position: relative;
  width: min(100%, 500px);
  aspect-ratio: 1 / 1.08;
  border-radius: 34px;
  border: 1px solid rgba(141, 232, 255, 0.18);
  background:
    linear-gradient(180deg, rgba(13, 26, 51, 0.96), rgba(7, 14, 27, 0.98)),
    radial-gradient(circle at center, rgba(68, 185, 255, 0.12), transparent 60%);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04), 0 30px 70px rgba(0, 0, 0, 0.45);
  overflow: hidden;
}

.signal-panel::before {
  content: "";
  position: absolute;
  inset: 14px;
  border-radius: 24px;
  border: 1px solid rgba(141, 232, 255, 0.1);
}

.signal-mark {
  position: absolute;
  inset: 0;
  width: 56%;
  margin: auto;
  opacity: 0.9;
  filter: drop-shadow(0 16px 40px rgba(68, 185, 255, 0.16));
}

.signal-grid {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(141, 232, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(141, 232, 255, 0.08) 1px, transparent 1px);
  background-size: 42px 42px;
  opacity: 0.18;
  mix-blend-mode: screen;
}

.signal-rings {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(141, 232, 255, 0.18);
}

.signal-rings-one {
  inset: 19%;
}

.signal-rings-two {
  inset: 10%;
  border-color: rgba(255, 182, 90, 0.16);
}

.signal-meter {
  position: absolute;
  left: 20px;
  bottom: 20px;
  display: grid;
  gap: 6px;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid rgba(141, 232, 255, 0.16);
  background: rgba(4, 9, 19, 0.72);
}

.signal-meter span {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.signal-meter strong {
  font-family: "Tektur", sans-serif;
  font-size: 1.05rem;
}

.signal-meter-alt {
  left: auto;
  right: 20px;
  bottom: auto;
  top: 20px;
}

.section-heading {
  max-width: 760px;
}

.section-heading.compact {
  margin-bottom: 20px;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(1.85rem, 4vw, 3rem);
  line-height: 1.04;
}

.section-heading p:last-child {
  margin-bottom: 0;
}

.quick-grid,
.route-grid,
.matrix-grid,
.notes-grid {
  display: grid;
  gap: 18px;
}

.quick-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.quick-card,
.route-card,
.matrix-card,
.note-card,
.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(14, 24, 47, 0.88), rgba(8, 15, 28, 0.9));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.quick-card {
  display: grid;
  gap: 10px;
  padding: 22px;
}

.quick-label {
  color: var(--accent);
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.route-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 24px;
}

.route-card {
  display: grid;
  gap: 18px;
  padding: 24px;
}

.route-card h3,
.matrix-card h3,
.note-card h3 {
  margin: 0;
  font-size: 1.3rem;
}

.route-topline {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
}

.route-status,
.route-score {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  font-size: 0.76rem;
}

.route-status {
  border: 1px solid var(--line);
}

.route-status.blocked {
  color: var(--danger);
  border-color: rgba(255, 109, 117, 0.28);
  background: rgba(255, 109, 117, 0.08);
}

.route-status.experimental {
  color: var(--amber);
  border-color: rgba(255, 182, 90, 0.28);
  background: rgba(255, 182, 90, 0.08);
}

.route-status.recommended {
  color: var(--ok);
  border-color: rgba(126, 242, 181, 0.26);
  background: rgba(126, 242, 181, 0.08);
}

.route-score {
  color: var(--muted);
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(255, 255, 255, 0.02);
}

.route-summary {
  margin: 0;
}

.route-points {
  margin: 0;
  padding-left: 18px;
}

.route-points li + li {
  margin-top: 10px;
}

.route-card-blocked {
  background: linear-gradient(180deg, rgba(37, 15, 24, 0.58), rgba(11, 16, 28, 0.92));
}

.route-card-recommended {
  background:
    radial-gradient(circle at top right, rgba(126, 242, 181, 0.12), transparent 34%),
    linear-gradient(180deg, rgba(12, 27, 34, 0.9), rgba(8, 16, 26, 0.94));
}

.matrix-grid,
.notes-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 24px;
}

.matrix-card,
.note-card {
  padding: 24px;
}

.matrix-card p,
.note-card p {
  margin-bottom: 0;
}

.faq-section {
  padding-bottom: 18px;
}

.faq-list {
  display: grid;
  gap: 14px;
  margin-top: 24px;
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 22px;
  color: var(--text);
  font: inherit;
  background: transparent;
  border: 0;
  text-align: left;
  cursor: pointer;
}

.faq-question span:first-child {
  font-family: "Tektur", sans-serif;
  font-size: 1rem;
}

.faq-icon {
  position: relative;
  width: 18px;
  height: 18px;
  flex: 0 0 18px;
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 18px;
  height: 2px;
  background: var(--accent);
  transform: translate(-50%, -50%);
  transition: transform 180ms ease, opacity 180ms ease;
}

.faq-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.faq-question[aria-expanded="true"] .faq-icon::after {
  opacity: 0;
}

.faq-answer {
  padding: 0 22px 22px;
}

.faq-answer p {
  margin: 0;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
  margin-top: 24px;
  padding: 0 6px;
}

@media (max-width: 1024px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .quick-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .page-shell {
    width: min(100vw - 20px, 100%);
    padding: 10px 0 48px;
  }

  .site-header {
    border-radius: 28px;
    padding: 18px;
  }

  .brand-lockup {
    width: min(100%, 320px);
  }

  .section {
    padding: 22px;
    border-radius: 26px;
  }

  .route-grid,
  .matrix-grid,
  .notes-grid,
  .quick-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .signal-stage {
    min-height: 360px;
  }

  .site-footer {
    padding: 0;
  }
}